Posted by **Mary** on Sunday, April 15, 2007 at 1:18am.

A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.036 m3 of helium at an absolute pressure of 1.2 x 10^5 Pa. The cylinder contains helium at an absolute pressure of 1.6 x 10^7 Pa and has a volume of 0.0031 m3. The temperature of the helium in the tank and in the balloons is the same and remains constant. What is the maximum number of people who will get a (fully inflated) balloon?

Figure the moles in the cylinder

n=PV/RT

figure the moles in each balloon

nb=.036*1.2E5/RT

number of people=molesincyl/moleinballon

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